Beating engine



April 17, 1928. 1,666,587

R. M. WENDEL BEATING ENGINE Filed May 25, 1927 4 Sheets-Sheet 1 INVE TOR. 14 h fl BY Way/2% A TTORNEYS.

' April 17, 1928.

R. M. WENDEL BEATING ENGINE Filed May 23, 1927. 4 Sheets-Sheet m m ma M E R V m m WW M w w W. W Y B H w April 17, 1928.

R. M. WENDEL BEATING ENGINE Filed May 23. 1927 4 Sheets-Sheet 3 A TTORNEYS.

April 17,1928. 1,666,587

R. M. WENDEL BEATING ENGINE Filed May 25. 1927 4 Sheets-Sheet 4 4 INVENTOR.

R 77% h ll/ Y WW ATTORNEYS.

Patented Apr. 17,

UNITED STATES nnnmom'n. w'annnn, or s'rocxnonu, SWEDEN.

BIATING ENGINE.

Application filed Kay 28, 1927, Serial No. 193,883, and in Sweden ltay 25, 1980.

This invention refers to beatingengines of the class which is' employed inthe paper mill factories. The main ject 'of' this invention is to provide a beating engine which procures the treating of the fibres with a considerable reduced waste of driving force.

Another object of this invention is a beating engine which can treat a fibre mass of a higher concentration than what is possible in the beating engines hitherto known.

Afurther object is a beating engine which can operate continuously,- thereby reducing the number of beating engines which is nec- 'essary to suit the increased capacityof the modern paper machines.

' Further features of this invention and how same is to be'carried out will be clearly described below and illustrated in the annexed drawings. Said drawings have the purpose to demonstrate diagrammatically how the invention can be materialized, but they do not show in detail all such parts and devices which are necessary to make the drawings suited for the work shop, because the constructional design of the improved beating engines can be varied between wide limits within the scope of this invention.

In the drawings: a Fig. 1 is an elevated section of the prototype of the improved beating engine, 'Fig. 2 is an axial section of the same apparatus, I

Figs. 3 and 4 are corresponding views of a somewhat modified embodiment of the heating engine,- r

Fig. 5 is an axial section through a distributor for the mass within the machine,

Fig. ,6 a planview' of the same distributor. Figs. 5 and 6 are drawn on a somewhat enlarged scale in comparison with the other Fig.7 is the same view as Figs. 1 and 3 of a further modification,

Fig. 8 is a portion of an axial section of the embodiment shown in Fig. 7,

Figs. 9 and 10 are views corresponding with those in Figs. 1 and 2 respectively but of a further embodiment of the invention,

Fig. 11 is a portion of the same section as in Fig. 10 but illustrating a modified arrangement thereof, and

Fig. 12 is a longitudinal view of roll and bed plate divided in' four sections.

In all the drawings the same reference figures refer to similar parts throughout.

Referring tothe drawings 1 represents the trough of the beating engine which trough differs from what is generally known in beating engines in so far, that the trough 1 is designed as a cylindrical drum with a substantially horizontal axis. This drum can be supported in any arbitrary way with the non-dispensable condition, that the drum must be able to revolve about said axis. In the embodiments illustrated in Fi 1-2 and 9-10 the drumis supported on ro lers 2 stationarily mounted upon the floor or any suit-' a le ground, whereby the shell of the-drum ought to be provided with some rails or other suitable strengthenings 200 around its outer surface. In Fig. '4 the drum 1 is shown as provided at both bottoms 32 with central necks 320 designed as hollow pins of a somewhat large diameter and adapted to cooperate with roller bearings 20, mounted on stanchions 210 for the support of the drum. It is understood, that the same arrangement belongs to the embodiments shown in Figs. 3 and 7, though the details are not shown in order to avoid accumulation of parts which nevertheless can be easily understood.

Within the rotary drum 1 there is disposed a roll 3 of substantially the same character as the roll in ordinary beating engines, though some special modifications from said ordinary form will be dealt with herebelow. The roll 3 is supported by a horizontal shaft 4, carried by bearings 5 at the ends which bearings are supported in any suitable way, for instance, as described in'the following paragraph. Said shaft 4 is provided with a pulley 6 for its revolving with the roll 3.

Below'the roll 3 the bed plate 7 is disposed. This bed plate can be designed in substantially the same .Way as the bed/plates in ordinary beating engines, but-with reference to Figs. 9 and 10 some modifications will be described later on. The suspension of the bed plate 7in relation to the roll 3 may be such that the interspace 9 between the bed plate and the roll can be adjusted according to the degree of treatment of the fibres. In Figs. 1, 2 and .3, 4 as well as 7 this adjustable suspension is illustrated as consisting therein, that the bedplate 7 is stationarily supported by the stanchions 210 and thebearings 5 carried by a couple of levers 34, the one end of which is pivotably supported by a stanchion 340 and the opposite end by a flexible wire 354, which is laid round a sheave 351 and loaded in the free end by a counterweight 35. The sheave 351 can be revolved by means of a crank-353 and toothed gear 352. A stanchion 350 suproll and bed plate somewhat enlarged to the 'end 8. In the same figure as well as in Figs.

2 and 7 the roll shaft 4 is substantially central to the axis of the drum 1 but in Figs. 3, 4c, 9 and 10 saidshaft is mounted excentrically to the axis of the drum. Roomy openings between theshaft 4 and the necks 320 Y allow for the supply of the mass to be treated into the drum whereby in Fig. 2a funnel 15 is shown for this supply.

In Figs. 3 and"? a removable cover 13 is arranged in the shell of the drum 1 for the supply, and in all the Figs. 1, 2 and 3, 4 as well as 7 another removable cover 14 on a remote spot ofthe shell of the drums is provided for the discharge of the ready made product, which escapes through a funnel 140'in the floor. p

In Figs. 9 and 10 the side'bottoms 32 are reduced to only rather narrow flanges 32 without the aforesaid necks 320 thus leaving the main portion of the'drum 'ends 1' .and 1" open for free passage into thedrum, whereby the supply is efiected through-a pipe 150 near the bottom at-the left hand end 1 of the drum 1 and the discharge through a pipe 151 on the right hand end of the drum somewhat above the bottom as will be more clearly described below.

In Fig. .4 a pulley 33 on the one hollow gin 320'is shown for the revolving of the rum 1, and it is understood, that similar appliances or adequate ones can be provided for in the other embodiments of the invention. For instance in Figs. 9 and 10 the two rollers 2 at the one side of the drum 1 may be mounted on a common shaft 331 which at the one end is provided with a pulley 330 which can berotated by a belt from the driving motor and thus edects the rotating otlthe drum 1 in the same direction as the r0 1 3. s In Figs. 3-and 1 the interior of the drum 1 is provided with series of shovels or scoops 16 along the shell near the side bottoms 32. At the lntake end 10 of the interspace 9 a funnel 17 terminates the upper portion of which forms a collector for the pulp mass which is carried up by means of the scoops 16 and "delivered into the collector funnel 17. A. slide 25 in the lower part of tunnel 17 can vary the outflow from the funnel into Figs. 5 and 6 wherein the sloping false bottoms 18 are substituted by two oblique chan- 'nels 22 crossing'each other and leading each from apocket 21 in the upper part of the funnel 17 so that the mass discharged from the left hand side of the drum lbecomes fed to the right hand portion-of the roll 3 and vice versa.

In Figs. 7 and 8 the scoops 16 and funnel 17 are substituted by guide plates 17 and 17" the former of which begins near the shell at a certain distance from the upper most portion of thedrum 1 with a bent ed e 30 and passing across the-drum above t e roll 3 terminates lower down near the shell while the other guide plate 17 begins with a bent edge 31 near the shell at some distance below the edge 30 of the guide plate 17 and goes down to the intake end 10 of the space 9 below the roll 3. The edge 30 lies somewhat further away from-the shell of the drum than does the edge 31 for the purpose mentioned below. From the discharge end of the bedplate 7 another guide plate 29 bent along a suitable curve ends below the .end of the guide plate 17 No one of the uide plates 17', 17" and 29 takes part in the rotation of the drum 1- but are kept stationary by means of suitably arranged fixtures not shown in the drawing, as they can be designed inany arbitrary way as easily understood by those skilled in the art. Similar guides 17', 17', and 29 are provided in the Figs. 9 vand 10 but difi'er in certain dcgrees as will be clearly described below.

In describing the operation of the apparatus 1 will take the various embodiments in. the'same order asthe are illustrated, andacc-Ordingly I will begin with Figs. land 2.

Here' the drum 1 has no special driving means, but it is arranged centrally'with the roll 3, which is positively revolved from some motor. by a belt and the pulley 6. When'the pulp mass has been made liquid by a suitable mixing with water'and supplied into the drum Lthrough, the funnel 15 to a height just below the roll 3-'-the 're'- movable cover 14 of course must be previously shut-the roll 3 is made to revolve in thedirection' indicated by the arrow in Fig. 1. This revolving of the roll 3 causes the pulprnass to enter the space 9 between roll and bed plate as known in beating engines of the ordinary types and raised a little above the stationary level of the mass in thedrum onaccount of the raised end porthe space 9 and thus regulate the fluid colintake end of the space 9 just as the arrows in the lower portion of'Fig. 1 illustrate.

The friction between the mass and the-shell of the drum 1 causes the drum to take part in the movement of the mass in the direction of the'last mentioned .arrows, e. g. in the opposite way relatively to the revolving of the roll 3, which revolving'of the drum becomes facilitated by the rollers 2.

In the embodiment shown in Figs. 3 and 4 the drum 1 is positively rotated from a motor and a belt on the pulley 33 wherebythe moving direction of the drum is indicated by the arrow on the left hand side of the drum in Fig. 3, when the roll 3 is revolved as mentioned before in the opposite direction, indicated by the arrow just above. the roll 3 in Fig. 3. The rotation of the drum causes the scoops 16 to catch portionsof the pulp mass from the bottom of the drum'and to carry it to the upper part thereof where the mass is discharged into the funnel 17,- respectively into the pockets 21 shown in Figs. 5 and 6.

From said funnel or its pockets the'mass' is discharged at 10 into the .interspace 9 between roll and bed plate and thereby treated in the known manner whereupon it is discharged in the main body of themass at the rear side of the drum. The advantages of this embodiment of the machine lie therein, that on the one side the increased liquid column 26 in the funnel increases the static pressure and thus increases the velocity of the mass when passing the roll and bed plate whereby the operative capacity of the ma chine will'be enlarged, while on the other side the sloping false bottoms 18 respectively the sloping and crossing channels 22 have a considerably good'efiect on the mixing of the mass thus also increasing the capacity of the machine.

In Figs. 7 and 8 the roll 3.and the drum 1 are both revolved positively similar as described for Figs. 3 and 4, but both in the same direction. However the speed of revolving" of the drum is adjusted in accordance with the concentration and specific gravity of the mass in such a way, that when in eqpilibrium the pulp mass iscarried in the s ape of a rather thin layer 27 around the shell of the drum under a certain degree of separation on account of the. centrifugal force. By that another layer 28 of comparatively pure water becomes formed inwardly of the heavier mass layer 27. The

guide plates 17', 17" are disposed so that the bent edge 30 of the guide plate-17' catches the pure water "layer 28 and carries it through the drum rearwards, so that it will be discharged just'above the spot, where the mass, caught by'the bent edge 31 of the other guide plate 17 is discharged by the sage between roll-3 an other guide plate 17' has substantially-the same width as the drum 1. Hence a-mixing' of the mass is effected at the discharge ends of the guide plates, 17 and-29. Preferably the guide plates 17 and 17 maybe adjustable, so that their submerging into the layers 27 and 28-may'be varied in accordance with the degree of concentration of said layers'whereby the eifect of the apparatus may be influenced.

The embodiments now described must all be stopped when the mass has been ready treated, so that the mass can'be discharged through the removable cover, 14 and channel 140 and a fresh charge supplied- In contradiction to that the embodiment illustrated in Figs. 9-11 operates continuously and does not need be stopped either for filling or for discharging. For that purpose the fresh mass is' supplied through the rather narrow pipe 150 near the bottom at the left hand side of the drum 1,- whereby said supply is arranged such,-that the flow can go on uninterruptedly during the revolving of the drum. It is to prefer, that the drum 1 with roll 3 and bed.plate .7 be

bed plate 7 through portion- 27 of the mass layer 29, whilethe preferably are provided with treating members of different shape on different portions of their length. The purpose of that is, that the mass when passing between roll and bed whereby one degree of treating takes place when the mass passes the first portion of the roll and bed plate another degree of treating occurs when the next portion of said members is passed, and a further degree of treating when the following portion there of is passed. 1

For the said purpose the roll 3 is supported in stationary bearings 5 but the bed plate 7 divided" into a plurality of sections. In the drawing four such sections are designated viz, with 7, 7 7 and 7 respectively as clearly to be seen in Fig. 12. These sections are supported each'by anindependent adjusting mechanism, which can be des gned in any arbitrary way and is not shown in the drawing to avoid confusion of lines so much more, as the designs of said adjusting appliances do not make part of this invention. They must however be arranged such that each section of the bed plate 7 can be adjusted relatively to the roll independently of the other sections.

Another arrangement for the same purplate shall be treated in various degreev with the inlet end ofthe next channel. The large openings v1, 1" in the ends of theif the jets becomes pose is, that the machine is designed so that the mass is supplied through the pipe 150 in the form' of a rather narrow jet which is caused to ass from the inlet end 1' to the outlet'en 1" along a line which substantially equals a screw line whereby the mass for each turn passes the roll and the bed plate substantially under maintaining of pipe 150 and which channels are disposed.

obliquely to the Vertical centre plane of the machine, so that the discharge end of each channel inplate 29. registers substantlally drum allow only a rather thin layer of mass to be present in the, drum viz, at most as deep as the width of the flanges 32, and

' when revolving the drum 1 carries said layer along with the shell whereby the friction between shell and mass serves as the transporting force. This layer of mass however becomes constitutedby the narrow ets which have left the oblique channels n guide plate 29, but as there are no positive partitionwallsalong the shell said ets of course will somewhat flow out mto the ad a-. cent jets. Owing to the frictional and centrifugal p rather lnappreciable.

A better result can be obtained, if the shell be provided with a plurality of small flanges or cams as whereby channels 170 are formed of substantially the same width as the channels in plate 29. The channels 170. however must not be positioned obliquely but can be parallel to the radial planes of the drum.

The last channel in guide plate 29 terminates inthe outlet "pipe 151.

Guide plates 17, 17 of substantially the same character as the corresponding guide plates in Fig. 7 are present whereby the upper guide plate 17 terminates 1n a trough 172 which ends in a discharge pipe 173 on the outlet side of the drum. The guide plate 17' catches the water layer 28 from the drum shell and delivers it into the trough 172 from where it can be delivered back into the drum 1 or carry away through the pipe 173, if a higher degree of concentration he wanted. Guide plate 17 catches the fibre layer 27 and ca-rriesit into the space 9 between roll and bed plate.

The treating members on the roll 3 and force however such intermingling designated with 171 in Fig. 11,

eifective ones The machine can continue to work uninterruptedly the 'whole work day without needfor stoppages for charging and discharging, and the mass can be ready made in one and the same machine, thus saving a considerable amount of cost and labour.

What I claim is: 1. In a beating engine,"a rotary-roll with a substantially horizontal axis, a bed plate cooperating with said roll, a drum with a substantially horizontal axis enclosing said roll and bed plate, said drum rotatory about said axis which is substantially parallel to the axis of said roll, means to supply the mass to be treated. into said drum, means to discharge the ready treatedmass therefrom and means to rotate said roll and said.

drum.

2; In a beating engine, a rotary drum with a substantially horizontal axis, a rotary roll therewithin with its axis of rotation parallel to the axis of said drum and cooperating with a bed plate within said drum, means to adjust the distance between roll and bed plate, and means to revolve drum and 'roll independently of one another,

means to supply the mass to be treated into said drum and into the space between roll and bed plate and'means to dischargethe 'ready' treated mass from the drum, means to mix the mass within the drum during its passage through the machine and means to regulate the supply of mass to the inter-space between said roll and bed plate when operative. I

3. In a beating engine,. a rotary drum with a substantially horizontal axis, a rotary roll therewithin with its axis of rotation parallel to the axis of said drum and cooperating with a bed plate within "said drum, said bed plate divided into sections with different op crating members, means to adjust said sectlons lndependently of one another with relation to said roll, said roll provided with operating members of various forms on var ous portions of its len th suited to cooperate with the variousy designed bed plate sections, meansto supply the mass to be treated into saiddrum at one end thereof and to diseharggthe' ready made mass from said drum at the other end thereof, said means of supply and discharge adapted to act 1 also when the drum revolves, and means to guide the flowof mass in a contmu'ous motion from the intake end of said drum to the outlet end thereof whereby the mass is caused to pass the interspaoe between roll and'bed plate sections successively from the-one end thereof to the other along all the variously formed portions of roll and sections of bed plate, and means to revolve said drum and said roll independently of one another.

4. In a beating engine, a rotary drum with a substantially horizontal axis, a rotary rolltherewithin with its axis of rotation parallel to the axis of said drum and cooperating REINH OLD M. WEN DEL. 

